▶ Full Post Text
Hi everyone,
We have all been there. You find a stock you love. The story is great, the chart is moving up, and FOMO kicks in. But one question stops you cold:
"Am I buying a great company... at a terrible price?"
Buying the top destroys wealth, even if the company succeeds. To stop guessing, I visualized my entire valuation process into a flowchart (attached above) to determine if a stock is in the "Buy Zone" or the "Bubble Zone."
Here is the detailed breakdown of how the roadmap works, step-by-step.
Step 1: The Context Check (The Moat)
Before looking at the price tag, you must check the quality. A cheap stock with no protection is a value trap.
Wide Moat (The Fortress): Companies like ARM Holdings. Competitors cannot displace them. These stocks deserve a premium valuation.
No Moat (The Commodity): Companies like Airlines. If they raise prices, customers switch. These stocks should always be cheap.
The Rule: If the Moat is "None," stop. The price doesn't matter if the business is indefensible.
Step 2: The Profit Fork
You cannot value all stocks the same way. You must ask: Is it making money?
Path A (Profitable): Valued based on Earnings (P/E, PEG).
Path B (Unprofitable): Valued based on Revenue and Survival (P/S, Cash).
Path A: Valuing Profitable Stocks (The Growth Trap)
Most beginners just look at P/E Ratio. This is dangerous.
A P/E of 50 looks expensive.
But if the company is growing at 50% a year, a P/E of 50 is actually CHEAP.
The Solution: The PEG Ratio
Divide the P/E by the Growth Rate (EPS CAGR).
PEG < 1.0: Undervalued. (Green Light).
PEG \~ 1.5: Fair Value.
PEG > 2.0: Expensive.
Note: For dividend stocks (like SCHD/Coca-Cola), use the PEGY Ratio (Growth + Dividend Yield) so you don't punish them for paying out cash.
The "Ferrari" Exception (Gross Margins)
If a stock is "Expensive" (PEG > 2.0), should you sell? Not necessarily.
Check the Gross Margins.
Software: Needs >70% margins.
Hardware: Needs >40% margins.
If the margins are elite, the premium price might be justified (Quality). If margins are low and price is high? Hard Pass.
Path B: Valuing Unprofitable Stocks (The Hype Check)
Since there are no earnings, P/E is useless. We use Price-to-Sales (P/S).
The Rules of Hype:
P/S < 10: Generally cheap for high growth tech.
P/S > 20: Priced for perfection.
P/S > 50: Danger Zone. At 50x sales, the company has to perform miracles to grow into that valuation.
The Survival Check (Cash Runway)
Valuation doesn't matter if they go bankrupt.
Take Total Cash / Annual Burn.
\> 2 Years: Safe. They can focus on execution.
< 1 Year: Dilution Risk. They will likely issue new shares to raise cash, crushing your stock price.
Summary
Don't let FOMO dictate your trade. Run the stock through the gauntlet.
Check the Moat.
Pick your Valuation Path (PEG vs P/S).
Check the Survival/Quality metrics.